It does not contain a media player and it does not associate filetypes. With the Windows 7 codec package installed you will be able to use any media player limited only by the players&39; capabilities to play all movies and video clips. Streaming video is supported in several formats in all popular web browsers. Users of the Windows 7 media center codecs have the ability to choose what is installed and where to install it using the public redistributable. After installation you can select to remove specific portions without removing the entire package. You can also readd the removed items at any time